THE TRIALS OF 'MARRIAGE'

"We heard about pharmacy, had the space and just thought we'd pop one in," recalls a supermarket manager. "Boy, were we in for a surprise.""It's easy popping one in; the difficulty comes after it's open," responds Swati Pathak, pharmacy coordinator at Bi-Lo, Mauldin, S.C., which operates 24 pharmacies.While the wedding of pharmacy departments and supermarkets may seem to be a marriage made in heaven,